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41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
/*********************************************************************************************************
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* ------------------------------------------------------------------------------------------------------
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* file description
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* ------------------------------------------------------------------------------------------------------
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* \file calculate.h
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* \unit calculate
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* \brief This is a simple math expression calculation module for C language
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* \author Lamdonn
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* \version v1.0.0
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* \license GPL-2.0
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* \copyright Copyright (C) 2023 Lamdonn.
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********************************************************************************************************/
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#ifndef __calculate_H
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#define __calculate_H
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/* Version infomation */
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#define CALCULATE_V_MAJOR 1
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#define CALCULATE_V_MINOR 0
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#define CALCULATE_V_REVISE 0
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/* Configuration information */
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#define CALCULATE_EXFUNC_MAX 32 /**< The maximum extern function count supported */
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/**
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* \brief enter a calculation expression to calculate the result, support 'in_function_table[]' table operation function
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* \param[in] *expression: expression
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* \return calculation result or NAN fail
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*/
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double calculate(const char *expression);
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/**
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* \brief Export external functions
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* \param[in] *name: function name
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* \param[in] func: function handle
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* \param[in] argc: count of arguments
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* \return 1 success or 0 fail
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*/
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int calculate_export(const char *name, double (*func)(), int argc);
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#endif
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